15b, Harrier Mews, Greenwich, London, SE28 0DQ

15b is a mid-terrace house in Greenwich, London, London (SE28 0DQ). It has a recorded floor area of 30 m² (around 323 sq ft), construction records dating it to 1983-1990 and council tax band A. At 30 m² this is the 3rd smallest of 51 units on EPC record in the building, where floor areas span 20–108 m². The building's EPC ratings span E to C, with this unit at the top. On EPC score it ranks first in the building (79 versus a worst of 46). The latest certificate (June 2023) shows a C (score 79), near the top of the C band. When first surveyed in May 2011 the rating was D, the property has climbed 1 band since. Between certificates, window efficiency went from Very Poor to Good, hot-water efficiency went from Very Poor to Poor and lighting went from Good to Very Good. The recommended improvements would push it to B (score 86). Main heating runs on electricity.

At 30 m² it sits well below the postcode median (51 m² across 50 EPCs), making it one of the more compact homes locally. Across 1996–2017, sale prices on this property compounded at 11.2% per year. On a £-per-square-foot basis, the last sale (£469/sq ft) was about 117.4% above the typical sold price in the postcode. On the market in May 2017 and unlisted since — roughly 9 years.